Popular Tanzanian conjoined twins die aged 21

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  Tanzanian conjoined twins Maria and Consolata Mwakikuti have died at the age 21 after suffering respiratory complications at a local hospital.
  The women, who were joined from the navel downwards and shared organs like the liver and lungs, had two hearts and separate heads and arms.
  
  They were admitted to hospital in December due to issues relating to heart disease but died on Saturday. The twins were popular in Tanzania and the news has caused sadness nationwide.
  Many people took to social media on Sunday to send messages of condolence to the family and friends. Tanzanian President John Magufuli tweeted that he was "saddened" by their deaths, adding that Consolata and Maria had "dreamed of serving the nation".
  In an interview with the BBC last year, the twins said that after they had completed their university education, they wanted to become teachers.